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Vulnerability · Published Aug 13, 2026 · Assigned by palo_alto

CVE-2026-0297GlobalProtect App: Buffer Overflow Vulnerability during UDP Tunnel Handshake

Medium 5.2

In plain English

A medium-severity out-of-bounds write in GlobalProtect App from Palo Alto Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 4.0)5.2Medium
Exploit odds (30 days)0.6%top 51.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man-in-the-middle (MitM) attacker or a rogue gateway to disrupt system processes and potentially execute arbitrary code with elevated privileges (SYSTEM privileges on Windows, and root privileges on macOS and Linux).

Affected products (as reported)

VendorProductVersions
Palo Alto Networks GlobalProtect App 6.3.0 – before 6.3.3-h156.2.06.0.0 – before 6.0.15
Palo Alto Networks GlobalProtect App 6.3.0 – before 6.3.3-h146.2.0 – before 6.2.8-h136.0.0 – before 6.0.15
Palo Alto Networks GlobalProtect App 6.3.0 – before 6.3.56.0.0 – before 6.0.15

Weakness: CWE-787 · Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber

References